package com.seas.support;

import com.sun.xml.internal.bind.v2.model.core.ID;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.support.JpaRepositoryFactory;
import org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean;
import org.springframework.data.jpa.repository.support.SimpleJpaRepository;
import org.springframework.data.repository.core.RepositoryInformation;
import org.springframework.data.repository.core.RepositoryMetadata;
import org.springframework.data.repository.core.support.RepositoryFactorySupport;

import javax.persistence.EntityManager;
import java.io.Serializable;

/**
 * Created by Seas Cheng on 2017/9/26
 */
public class CustomRepositoryFactoryBean<T extends JpaRepository<S, ID>, S, ID extends Serializable> extends JpaRepositoryFactoryBean<T, S, ID> {

    public CustomRepositoryFactoryBean(Class<? extends T> repositoryInterface) {
        super(repositoryInterface);
    }

    @Override
    protected RepositoryFactorySupport createRepositoryFactory(EntityManager entityManager) {
        return new CustomRepositoryFactory(entityManager);
    }

    public static class CustomRepositoryFactory extends JpaRepositoryFactory{
        public CustomRepositoryFactory(EntityManager entityManager) {
            super(entityManager);
        }

        @Override
        @SuppressWarnings({"unchecked"})
        protected <T, ID extends Serializable> SimpleJpaRepository<?, ?> getTargetRepository(RepositoryInformation information, EntityManager entityManager) {
            return new CustomRespositoryImpl<T, ID>((Class<T>)information.getDomainType(), entityManager);
        }

        @Override
        protected Class<?> getRepositoryBaseClass(RepositoryMetadata metadata) {
            return CustomRespositoryImpl.class;
        }
    }
}
